M3 multiroom amplifier The M3 multiroom amplifier offers 2 stereo zones (50W per channel). An external amplifier can be connected via its digital output. Thanks to its thin design and elegant appearance, the M3 can easily be installed next to a music source in your home. You can also connect a TV to the optical input and add an analog source via the 3.5 mm jack input (such as a CD player, Google Chromecast or an Amazon Echo Dot). The M3 works together with the Basalte Core Server and supports audio -over-ethernet. This means that any source connected to an M3 input becomes a direct source for all other zones in the multiroom audio system. The M3 can also be integrated into the KNX home automation system via the Basalte Core Server. You can use saved audio messages to use them as signals in the house, for example as a doorbell. With the integrated Bluetooth receiver, you can play music in every Asano zone via your smartphone or tablet.